Powerful 27600mAh power bank from Alza discounted by almost five hundred crowns! Boasts a color display and decent rating

A power bank that can handle charging a laptop and clearly shows what’s happening is a practical companion for travel and work. AlzaPower Vision 27 600 mAh with 140W output now costs 1,839 CZK instead of 2,299 CZK with code ALZADNY20. It has been available since the end of last year, and over 2,000 units have been sold since then. Users generally praise it in reviews, boasting a rating of 4.5/5.

Quick summary:
✅ Makes sense if you charge both a laptop and a phone and want a large capacity with a clear display and metal body.
⚠️ Consider that the full 140 W only holds for a short time due to heating, and both USB-C ports are interdependent.
💡 For 1,839 CZK, it offers performance and features on par with more expensive brands, but expect a higher weight of 640 g.

Why this power bank is interesting

The main advantage of the AlzaPower Vision power bank is that it aims higher than just charging a phone. Thanks to Power Delivery 3.1 and up to 140 W output via USB-C, it can charge a laptop or MacBook, not just a mobile phone and headphones. It also adds a color TFT display, which people repeatedly praise in reviews, and a metal aluminum body, which feels premium and dissipates heat better.

Its position against the competition is also interesting. Users compare it in reviews to brands like Anker or UGREEN, and at a significantly lower price. For 1,839 CZK with code ALZADNY20, it’s a discount that Alza itself describes as real, so the features get a reasonable price tag.

Key parameters explained simply

The capacity is stated as 27,600 mAh, or 99.36 Wh. For watt-hours, it’s good to know that the actually usable capacity is lower than the nominal due to common losses during voltage conversion, which some users have also measured. However, a practical advantage of this value is that it remains below the 100 Wh limit, so you can take the power bank on a plane (unlike larger capacity models).

Connectivity consists of two USB-C ports (PD 3.1) and one USB-A, so you can charge up to three devices simultaneously, with a combined output of up to 162.5 W. A wide range of fast charging protocols is supported, including Quick Charge 3.0, Samsung, and Apple, with Smart IC managing power distribution. There’s a Low Power Mode for headphones and watches. The display shows power per port, charge status, temperature, and cycle count, which will please more tech-savvy users.

Practical aspects: real-world performance, ports, cable

Here, it’s necessary to be honest, as reviews are specific. The declared 140 W is maintained by the power bank only for a limited time — according to users, about fifteen minutes, then the power drops due to heating (typically to 87 and later 65 W). Similarly, the stated charging time of “1 hour” applies under ideal conditions with a 100W charger and in a cool environment; in reality, it often takes longer due to temperature. This behavior is common for powerful power banks, but it’s fair to account for it.

Second thing: both USB-C ports share a single chip, so when both are used simultaneously, the power drops significantly (voltage falls and charging speed decreases). You’ll get the best result using one USB-C port. And thirdly, a repeated experience from reviews: the included 30cm cable is weaker and causes issues with fast charging for some phones (typically Xiaomi and Samsung) — using a higher quality cable often resolves this.

What users say

On Alza, the power bank has a rating of 4.5 out of 5 from 100 reviews, 86% of customers recommend it, and the return rate is at a low level of 0.93%; over 2,000 units have been sold. Most often, people praise the metal craftsmanship, clear display, and the real ability to charge a laptop, where the charging speed rivals more expensive brands.

Criticism mainly targets the points already mentioned: heating and power drop during prolonged charging, the interdependence of both USB-C ports, and incompatibility with fast charging for some Xiaomi and Samsung phones, where a different cable is needed. Some users also point out that the actually usable capacity is lower than the nominal. However, given the large number of reviews, it is a mature and proven product.

When it doesn’t make sense

If you only charge a phone or headphones, this power bank is unnecessarily large, heavy, and powerful — a lighter model with less capacity will fit better in your pocket. Similarly, if you need to charge two demanding devices via USB-C simultaneously at full power, you’ll encounter the shared chip limitation. And whoever has a Xiaomi or Samsung phone and relies on their own super-fast charging should expect to get more standard speeds here.

Verdict: who the discount is worth it for

AlzaPower Vision 27 600 mAh is a successful power bank for laptop owners who want a large capacity, 140 W power, and a clear display in a metal body. For 1,839 CZK with code ALZADNY20, it offers features that users compare to more expensive brands, and thanks to 99.36 Wh, it’s allowed on planes. However, expect a weight of 640 g, a power drop when heated, and shared USB-C ports, and feel free to opt for a higher-quality cable. Whoever can tolerate these limitations and genuinely utilizes the power will get a lot of value for 1,839 CZK. Those who only charge a phone should choose a lighter model.

Do you primarily need a power bank for a laptop, or is a lighter model for your phone sufficient?